摘要
基于邻苯二酚对luminol-Tween 20化学发光体系的强烈的抑制作用,建立了一种简单、灵敏的luminol-Tween 20化学发光体系测定邻苯二酚的新方法。在最佳实验条件下,方法的检出限为5.0×10-10mol/L,线性范围为1.0×10-9mol/L～1.0×10-7mol/L,对5.0×10-8mol/L邻苯二酚进行平行测定11次,其RSD为4.1%。该方法可应用于自来水样中邻苯二酚的测定。
A simple and sensitive flow injection-chemiluminescence （CL） system of luminol-Tween 20 for the direct determination of catechol was developed. Proposed method was based on the strongly in- hibition effect of catechol on the CL intensity of luminol-Tween 20 system. Under the optimial condi- tions, cateehol was determined. The detection limit of the method is5.0×10^-10mol/L for catechol, the linear range for catechol is 1.0×10^-9mol/L-1.0×10～mol/L. The relative standard deviation is 4. 1% for 5.0×10^-8mol/L catechol in 11 repeated measurements. The method was successfully applied to the detection of catechol in tap water samples.
出处
《贵州师范大学学报（自然科学版）》
CAS
2013年第3期72-75,共4页
Journal of Guizhou Normal University：Natural Sciences
基金
玉溪师范学院博士科研基金资助项目
